Acerinox is the parent company of a group engaged in the manufacture and sale of flat and long stainless steel products, and stainless steel wires. Co.'s major products include slabs, billets, black coils, plates, hot-rolled coils, hot-rolled sheets, flat bars, hot-rolled re-bars, hot-rolled black bars, engraved sheets, cold-rolled coils, cold-rolled sheets and circles. Co. also provides long stainless steel products, such as wire rods, angles, hot rolled flat bars, hot rolled re-bars, reinforced bars in coils, cold rolled re-bars, hot rolled black bars, cold drawn bars, and smooth turned bars. In addition, Co. offers wires, welding wire bars, and bars for electrodes.

Cellnex Telecom SA is a Spain-based company engaged in the wireless telecommunications (telecom) business. Its activities are divided into three segments: Broadcasting infrastructure, Telecom site rental, as well as Network services and other. The Broadcasting infrastructure division comprises distribution and transmission of television (TV) and frequency modulation (FM) radio signals, operation and maintenance (O&M) of radio broadcasting network, as well as over-the-top (OTT) radio services, among others. The Telecom site rental division provides access to wireless infrastructure, primarily through infrastructure hosting and telecom equipment co-location, mainly for mobile network operators and other wireless and broadband telecom network operators. The Network services and other division offers connectivity services for a variety of telecom operators and radio communication, among others. The Company also develops 5th generation mobile networks (5G) through Alticom BV.

Obrascon Huarte Lain is an international concession and construction groups based in Spain. Co. maintains significant operations in 30 countries across all five continents. Co. is engaged in hospital and railway construction, transport infrastructure concessions, oil and gas, energy, solids handling and fire protection systems and international contracts. Co.'s operations are organized along four divisions: OHL Concesiones, OHL Construccion, OHL Industrial y OHL Desarrollos. Co. is also engaged in real state project developments of mixed use managed by the international hotel chains.